当动画开始播放时，我的应用程序提供了一个outofmemory 异常。我能做什么？ 动画中的图像合并后的大小为 512kb，即 10 张图像。

我的 Activity 类是button_anime。

 public class Button_Anime extends Activity{

private static int SPLASH_TIME_OUT = 500;
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_splash_about);
    ImageView loading =(ImageView) findViewById(R.id.iVArcRail_2);
    loading.setBackgroundResource(R.drawable.about_button_anime);
    AnimationDrawable load =(AnimationDrawable)loading.getBackground();
    load.start();
    new Handler().postDelayed(new Runnable() {
               
        @Override
        public void run() {
               Intent i = new Intent(Button_Anime.this, Home.class); 
            startActivity(i);
            finish();
        }
    }, SPLASH_TIME_OUT);
  }
 }

我的activity_splash_about.xml

  <?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/withoutlogo" >

<ImageView
    android:id="@+id/imageView1"
    android:layout_width="wrap_content"
    android:layout_height="70dp"
    android:layout_alignParentTop="true"
    android:layout_centerHorizontal="true"
    android:layout_marginBottom="10dp"
    android:layout_marginTop="10dp"
    android:background="@drawable/logoline" />

<ImageView
    android:id="@+id/iVArcRail_2"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_below="@+id/imageView1"/>
 </RelativeLayout>

这是动画文件。 about_button_anime

  <?xml version="1.0" encoding="utf-8"?>
  <animation-list xmlns:android="http://schemas.android.com/apk/res/android" 
  android:oneshot="false" >
  <item
      android:drawable="@drawable/ab1"
      android:duration="50"/>
  <item
      android:drawable="@drawable/ab2"
      android:duration="50"/>
  <item
      android:drawable="@drawable/ab3"
      android:duration="50"/>
  <item
      android:drawable="@drawable/ab4"
      android:duration="50"/>
  <item
      android:drawable="@drawable/ab5"
      android:duration="50"/>
  <item
      android:drawable="@drawable/ab6"
      android:duration="50"/>
  <item
      android:drawable="@drawable/ab7"
      android:duration="50"/>
  <item
      android:drawable="@drawable/ab8"
      android:duration="50"/>
  <item
      android:drawable="@drawable/ab9"
      android:duration="50"/>
  <item
      android:drawable="@drawable/ab10"
      android:duration="50"/>
  
  </animation-list>

这是我的日志猫。

 FATAL EXCEPTION: main
 Process: com.quinoid.thomasinternational, PID: 1514
 java.lang.OutOfMemoryError
 at android.graphics.BitmapFactory.nativeDecodeAsset(Native Method)
 at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:587)
 at android.graphics.BitmapFactory.decodeResourceStream(BitmapFactory.java:422)
 at android.graphics.drawable.Drawable.createFromResourceStream(Drawable.java:840)
 at android.content.res.Resources.loadDrawable(Resources.java:2110)
 at android.content.res.Resources.getDrawable(Resources.java:700)
 at android.graphics.drawable.AnimationDrawable.inflate(AnimationDrawable.java:282)
 at android.graphics.drawable.Drawable.createFromXmlInner(Drawable.java:937)
 at android.graphics.drawable.Drawable.createFromXml(Drawable.java:877)
 at android.content.res.Resources.loadDrawable(Resources.java:2092)
 at android.content.res.Resources.getDrawable(Resources.java:700)
 at android.view.View.setBackgroundResource(View.java:15303)
 at com.quinoid.thomasinternational.Button_Anime.onCreate(Button_Anime.java:19)
 at android.app.Activity.performCreate(Activity.java:5231)
 at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
 at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2159)
 at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245)
 at android.app.ActivityThread.access$800(ActivityThread.java:135)
 at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
 at android.os.Handler.dispatchMessage(Handler.java:102)
 at android.os.Looper.loop(Looper.java:136)
 at android.app.ActivityThread.main(ActivityThread.java:5017)
 at java.lang.reflect.Method.invokeNative(Native Method)
 at java.lang.reflect.Method.invoke(Method.java:515)
 at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
 at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
 at dalvik.system.NativeStart.main(Native Method)

如何让这个动画运行起来？

我已经提供了 largeHeap="true"。

最佳答案

这会很有效，

确保将图像放在 Assets 文件夹中。

public class AnimationActivily extends Activity {

private Bitmap log_imgs[];
private Bitmap tempBitmap;
private Handler uiHandler;
private ImageView logo_view;
int img_cnt = 1;
protected int _splashTime = 91;
Thread splashTread;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
            WindowManager.LayoutParams.FLAG_FULLSCREEN);

    setContentView(R.layout.activity_animation_activily);
    logo_view = (ImageView) findViewById(R.id.logo_view);
    log_imgs = new Bitmap[91];
    for (int i = 1; i <= 90; i++) {
        get_Images_Assest(i, "logo_pngs");
    }
    logo_view.setImageBitmap(log_imgs[70]);
    uiHandler = new Handler();
    // thread for displaying the SplashScreen
    splashTread = new Thread() {
        @Override
        public void run() {
            try {
                while (img_cnt < _splashTime) {
                    sleep(30);
                    if (img_cnt <= 90)
                        update_view(img_cnt);
                    img_cnt++;

                }
            } catch (InterruptedException e) {
                // do nothing
            } finally {

                Intent i = new Intent(AnimationActivily.this,
                        MainActivity.class);
                i.setFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
                startActivity(i);
                AnimationActivily.this.finish();
                // overridePendingTransition(R.anim.slide_in,
                // R.anim.slide_out);
                // *** Put this in another
                // Activity***//overridePendingTransition(R.anim.slide_in,
                // R.anim.slide_out);
            }
        }
    };
    splashTread.start();

}

public Bitmap tempImg;

private void get_Images_Assest(int cnt, String folder_name) {
    try {

        InputStream is = getAssets().open(
                folder_name + "/" + "logo" + cnt + ".png");
        if (tempImg != null) {
            tempImg = null;
        }
        tempImg = BitmapFactory.decodeStream(is);
        // tempBitmap = Bitmap.createScaledBitmap(tempImg,
        // tempImg.getWidth() * 2, tempImg.getHeight() * 2, true);
        log_imgs[cnt] = tempImg;
    } catch (IOException e) {
        e.printStackTrace();
    }
}

public void update_view(final int cnt) {
    uiHandler.post(new Runnable() {
        public void run() {
            try {
                logo_view.setImageBitmap(log_imgs[cnt]);
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    });

}

public void onBackPressed() {
}

public void onDestroy() {
    super.onDestroy();

    for (int i = 1; i <= 90; i++) {
        log_imgs[i].recycle();
    }
    log_imgs = null;
    splashTread = null;
}
}

关于java - 导致内存不足异常的动画，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/24177116/